Hi Ivan,
I had a twinstar and it flew great. it is very stable and will fly on one engine. I used 2 os 25 bushing engines and it was more than enough power. I was able to do touch-and-go, low slow flight and lands like a dream. if you want something quick and relatively cheep then it's a really good deal. I didn't like the sticky paper covering so i recovered mine with monokote.
Good flier.

Tony